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Sierra 57900P Amega 65 MPH Speedometer Kit with Domed Glass

Manufacturer

Sierra

<p>For nearly six decades, Sierra has established itself as one of the marine industry's most trusted names in aftermarket engine and drive parts. Founded as a specialized marine parts manufacturer, Sierra has grown into a comprehensive supplier of replacement components, instrumentation, and accessories for both recreational and commercial boating applications. Operating from their 300,000-square-foot distribution center in Litchfield, Illinois, Sierra serves boat owners and marine technicians worldwide with an extensive catalog of parts engineered specifically for the harsh saltwater environment.</p><h3>Marine Engine Excellence</h3><p>Sierra's reputation was built on delivering precision-engineered internal engine components and drive system parts that meet or exceed OEM specifications. Their <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> provide critical sealing solutions for inboard and outboard motors, while their <a href="/7570-sierra-engine-complete-assembly-15341">engine complete assemblies</a> offer comprehensive replacement options for major overhauls. Each component undergoes rigorous testing to ensure reliability in demanding marine conditions, from corrosion resistance to temperature cycling performance.</p><h3>Instrumentation and Monitoring Systems</h3><p>Accurate instrumentation is essential for boat operators to monitor engine health and prevent costly breakdowns on the water. Sierra's comprehensive line of <a href="/7570-sierra-gauges-200483">gauges</a> includes everything from fuel pressure and temperature indicators to voltmeters and trim gauges, all designed with marine-grade materials that withstand vibration, moisture, and UV exposure. Their <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauges</a> deliver precise RPM readings critical for optimizing engine performance and fuel efficiency. Supporting these instruments, Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> ensure proper signal conditioning and accurate readings across various sensor types and engine configurations.</p><h3>Expanded Product Portfolio</h3><p>In 2022, Sierra significantly broadened its scope beyond traditional marine engine parts to encompass a wider range of boating accessories and even outdoor power equipment components. This strategic expansion brought established marine brands like Shields and Moeller under the Sierra umbrella, creating a one-stop resource for marine maintenance and replacement parts. The company now offers fuel systems, electrical components, battery charging solutions, and NMEA electronics alongside their traditional engine parts lineup.</p><h3>Quality Backed by Industry-Leading Warranties</h3><p>What sets Sierra apart in the crowded aftermarket marine parts market is their commitment to standing behind every component they manufacture. Their warranty coverage extends beyond simple part replacement—it includes shop labor, haul-out fees, towing charges, and related incidental costs should a warrantied part fail. This comprehensive protection reflects the company's confidence in their manufacturing processes and quality control standards. For boat owners facing repairs far from shore or mechanics working on customer vessels, this peace of mind is invaluable. Whether you're maintaining an outboard motor, rebuilding an inboard engine, or upgrading your boat's instrumentation, Sierra's decades of marine industry experience and commitment to quality make them a reliable choice for keeping your vessel running at peak performance.</p>

Part Number

57900P
06/01/2036 6:56 PM
Sale Price

$85.54

2 left at this price

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 57900P Amega Speedometer Kit features smart white and red graphics on a sleek black dial background, designed specifically for marine applications. The very low profile bezel follows the curve of the lens to eliminate water trapping, while the domed glass design effectively sheds water and resists scratching for long-lasting clarity and performance.

Key Features:

  • 65 MPH maximum speed range for accurate speed monitoring
  • Compatible with most outboards, stern drives, and gasoline-powered inboards
  • Enhanced through-dial lighting provides excellent readability at night
  • Dual U.S. and metric scales with ISO symbols where appropriate
  • Low-profile bezel design prevents water accumulation
  • Domed glass lens resists scratching and improves water shedding
  • High-contrast black dial with white and red graphics for easy visibility

This complete speedometer kit includes everything needed for installation and provides reliable, accurate speed readings in marine environments. The Sierra Amega series is engineered for durability and performance in demanding boating conditions.

Good prices and very good delivery timesAAAAAAAAAAAAAAAAA

Quick and easy

So far experience is good, will see if parts show up as they say.

Good

The best price I could find and it arrived in 2 days! I'll be back for more.

Easy to use site, hopefully my shipment is speedy!

Quick and easy. Found what we wanted, checkout was smooth.

I searched the internet and found Autoplicity to have the best prices by far. Shipping and tracking information was provided next day. I will definitely use Autoplicity again and highly recommend them.

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Placed an order Friday before a holiday weekend, received the product the following week. Easy to navigate website and prices were much lower than MSRP. Have nothing negative to say.

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